我遇到以下异常：
类型＆＃39; ProtoBuf.ProtoException＆＃39;的例外情况发生在 protobuf-net.dll但未在用户代码中处理
附加信息：检测到可能的递归（偏移量：2 level（s））：DataAccess.Data.Models.Opta.OptaEvent
尝试序列化这些类时：
[Serializable][ProtoContract(ImplicitFields = ImplicitFields.AllFields)]
public class RRML
{
public int Id { get; set; }
public int CompId { get; set; }
public OptaTeam Home { get; set; }
public OptaTeam Away { get; set; }
public int PeriodMinute { get; set; }
public string Status { get; set; }
public string Venue { get; set; }
public string Referee { get; set; }
public Dictionary<string, MatchStatCategory> MatchStats { get; set; } //we are not currently including stats that are only included when livescoring = 11 ; ie possession + territory
public List<OptaEvent> Events { get; set; }
public ChartData ChartData { get; set; }
}
[Serializable][ProtoContract(ImplicitFields = ImplicitFields.AllFields)]
public class OptaTeam
{
public int Id { get; set; }
public string Name { get; set; }
public int Score { get; set; }
[ProtoMember(999)]
public TeamData Data { get; set; }
}
[Serializable][ProtoContract(ImplicitFields = ImplicitFields.AllFields)]
public class OptaEvent
{
public string Minute { get; set; } //not always an int, eg 40+3
public string Second { get; set; }
public OptaEventType Type { get; set; }
public string Period { get; set; }
public PlayerData Player { get; set; }
public int TeamId { get; set; }
public Commentary Commentary { get; set; }
public double MinuteForOrder {
get {
if(string.IsNullOrWhiteSpace(Minute))
{
return 0;
}
string[] components = Minute.Split('+');
if (components.Count() > 1)
{
return Convert.ToInt32(components[0]) + Convert.ToInt32(components[1]) * 0.01;
}
else
{
return Convert.ToInt32(components[0]);
}
}
}
}
[Serializable][ProtoContract(ImplicitFields = ImplicitFields.AllFields)]
public enum OptaEventType
{
FirstHalfStart,
FirstHalfEnd,
SecondHalfStart,
SecondHalfEnd,
End,
SubOn,
SubOff,
YellowCard,
RedCard,
Try,
Penalty,
Conversion,
UNKNOWN
}
[Serializable][ProtoContract(ImplicitFields = ImplicitFields.AllFields)]
public class Commentary //for RU8, ignore Message Type = "leader table"
{
public int Id { get; set; }
public int PlayerId { get; set; }
public int TeamId { get; set; }
public string Time { get; set; }
public string Type { get; set; }
public string Comment { get; set; }
}
[Serializable][ProtoContract(ImplicitFields = ImplicitFields.AllFields)]
public class ChartData
{
public string Home { get; set; }
public string HomeColour { get; set; }
public string Away { get; set; }
public string AwayColour { get; set; }
}
[Serializable][ProtoContract(ImplicitFields = ImplicitFields.AllFields)]
public class TeamData
{
public Dictionary<int, PlayerData> Players { get; set; } //(position_id / playerdata)
public string Coach { get; set; }
}
[Serializable][ProtoContract(ImplicitFields = ImplicitFields.AllFields)]
public class PlayerData
{
//public int TotalSubs { get { return SubOn + SubOff; } }
//public int SubOn {get;set;}
//public int SubOff {get;set;}
//public int Conversions { get; set; }
//public int Tries { get; set; }
//public int Penalties { get; set; }
public int Id {get;set;}
public string Name { get; set; }
public string Position {get;set;} //eg Back 8
public int PositionId { get; set; } //players should be ordered by this
public List<OptaEvent> Events { get; set; }
}
[Serializable][ProtoContract(ImplicitFields = ImplicitFields.AllFields)]
public class MatchStatCategory
{
public string Name {get;set;} //eg Attack, Defence
public List<MatchStat> Stats { get; set; }
}
[Serializable][ProtoContract(ImplicitFields = ImplicitFields.AllFields)]
public class MatchStat
{
public string Name { get; set; } //eg Tries, Metres
public string HomeDisplay { get; set; }
public string AwayDisplay { get; set; }
public int Ratio { get; set; } //Ratio, for home v away
//when calculating this, don't forget 0-0 cases should be 50%
//eg: 1/8 penalty goals vs 2/2 is 12.5% against 100% so ratio is 12.5/112.5 = 11%
}
[Serializable][ProtoContract(ImplicitFields = ImplicitFields.AllFields)]
public enum MatchStatType
{
Numeric,
Percentage,
Ratio
}
我读到将 IsReference 设置为true但我不确定我是否正确理解 IsReference 的概念。我在哪里放置属性？
请注意，[Serializable]属性仅用于遗留原因。
添加完整的异常正文：
[ProtoException: Possible recursion detected (offset: 2 level(s)): DataAccess.Data.Models.Opta.OptaEvent]
ProtoBuf.ProtoWriter.CheckRecursionStackAndPush(Object instance) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:302
ProtoBuf.ProtoWriter.StartSubItem(Object instance, ProtoWriter writer, Boolean allowFixed) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:326
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:44
proto_43(Object , ProtoWriter ) +674
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_45(Object , ProtoWriter ) +1035
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_43(Object , ProtoWriter ) +674
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_45(Object , ProtoWriter ) +1035
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_43(Object , ProtoWriter ) +674
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_45(Object , ProtoWriter ) +1035
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_43(Object , ProtoWriter ) +674
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_45(Object , ProtoWriter ) +1035
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_43(Object , ProtoWriter ) +674
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_45(Object , ProtoWriter ) +1035
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_43(Object , ProtoWriter ) +674
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_45(Object , ProtoWriter ) +1035
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_43(Object , ProtoWriter ) +674
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_45(Object , ProtoWriter ) +1035
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_43(Object , ProtoWriter ) +674
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_45(Object , ProtoWriter ) +1035
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_43(Object , ProtoWriter ) +674
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_45(Object , ProtoWriter ) +1035
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_43(Object , ProtoWriter ) +674
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_45(Object , ProtoWriter ) +1035
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_43(Object , ProtoWriter ) +674
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_45(Object , ProtoWriter ) +1035
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_43(Object , ProtoWriter ) +674
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_41(Object , ProtoWriter ) +159
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_39(Object , ProtoWriter ) +454
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_37(Object , ProtoWriter ) +480
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_35(Object , ProtoWriter ) +532
ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:46
proto_33(Object , ProtoWriter ) +294
ProtoBuf.Meta.TypeModel.SerializeCore(ProtoWriter writer, Object value) in c:\Dev\protobuf-net\protobuf-net\Meta\TypeModel.cs:186
ProtoBuf.Meta.TypeModel.Serialize(Stream dest, Object value, SerializationContext context) in c:\Dev\protobuf-net\protobuf-net\Meta\TypeModel.cs:218
AB.SiteCaching.Serializers.ProtobufNetSerializer.Serialize(Object o) in e:\Dev\NZRU\NZRU.Sites\Main\AB.SiteCaching\Serializers\ProtobufNetSerializer.cs:12
AB.SiteCaching.Providers.<>c__DisplayClass12`1.<StoreCacheObject>b__10() in e:\Dev\NZRU\NZRU.Sites\Main\AB.SiteCaching\Providers\RedisDataSource.cs:159
Microsoft.Practices.TransientFaultHandling.<>c__DisplayClass1.<ExecuteAction>b__0() +15
Microsoft.Practices.TransientFaultHandling.RetryPolicy.ExecuteAction(Func`1 func) +612
AB.SiteCaching.Providers.RedisDataSource.StoreCacheObject(String fullCacheKey, CacheDataContainer`1 cached, TimeSpan timeOut) in e:\Dev\NZRU\NZRU.Sites\Main\AB.SiteCaching\Providers\RedisDataSource.cs:153
AB.SiteCaching.Providers.<>c__DisplayClass1`1.<RetrieveCached>b__0() in e:\Dev\NZRU\NZRU.Sites\Main\AB.SiteCaching\Providers\RedisDataSource.cs:53
System.Threading.Tasks.Task.Execute() +110
[AggregateException: One or more errors occurred.]
System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken) +14086697
System.Threading.Tasks.Task.Wait() +17
AB.SiteCaching.Providers.RedisDataSource.RetrieveCached(String key, Func`1 onNotCached, TimeSpan timeOut) in e:\Dev\NZRU\NZRU.Sites\Main\AB.SiteCaching\Providers\RedisDataSource.cs:73
DataAccess.Data.Caching.CachedMatches.GetMatchOptaData(Int32 optaMatchId) in e:\Dev\NZRU\NZRU.Sites\Main\DataAccess\Data\Caching\CachedMatches.cs:61
Shared.Services.MatchService.ParseForScroller(List`1& fixtures, Int32 delay) in e:\Dev\NZRU\NZRU.Sites\Main\Shared\Services\MatchService.cs:109
AllBlacksdotcom.Controllers.HomeController.Index() in e:\Dev\NZRU\NZRU.Sites\Main\AllBlacks.com\Controllers\HomeController.cs:47
lambda_method(Closure , ControllerBase , Object[] ) +79
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +242
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +39
System.Web.Mvc.Async.AsyncControllerActionInvoker.<BeginInvokeSynchronousActionMethod>b__39(IAsyncResult asyncResult, ActionInvocation innerInvokeState) +12
System.Web.Mvc.Async.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult) +139
System.Web.Mvc.Async.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3d() +112
System.Web.Mvc.Async.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f() +452
System.Web.Mvc.Async.<>c__DisplayClass33.<BeginInvokeActionMethodWithFilters>b__32(IAsyncResult asyncResult) +15
System.Web.Mvc.Async.<>c__DisplayClass2b.<BeginInvokeAction>b__1c() +37
System.Web.Mvc.Async.<>c__DisplayClass21.<BeginInvokeAction>b__1e(IAsyncResult asyncResult) +241
System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState) +29
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +111
System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +53
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +19
System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult asyncResult, ProcessRequestState innerState) +51
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +111
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +606
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +288
编辑：
Serializer Code：
public class ProtobufNetSerializer : ICacheDataSerializer
{
public byte[] Serialize(object o)
{
using (var memoryStream = new MemoryStream())
{
Serializer.Serialize(memoryStream, o);
return memoryStream.ToArray();
}
}
public T Deserialize<T>(byte[] stream)
{
var memoryStream = new MemoryStream(stream);
return Serializer.Deserialize<T>(memoryStream);
}
}
答案 0 :(得分：1)
我通过简化模型解决了这个问题：
public List<OptaEvent> Events { get; set; }
代码中的这一行没有意义。我们只需要事件类型列表而不是所有事件详细信息的列表。删除它并用适当的属性替换它就可以了。